It's amazing what happens when you hog out a port, then machine the **** out of the intake side to pull the CCs back down, isn't it? That makes them no longer stock heads, too.
Might as well slap on a set of w2 heads and engrave "302" on them.
Comparing super stock and stock eliminator heads to factory casting is such a dishonest comparison that it renders you nothing more than a troll.